- Sargramostim 250 mcg/m2 SC on Days 2-15 of each cycle. Patients will be evaluated every 4 cycles (12 weeks) for response using RECIST criteria. PSA response will be evaluated according to the National Cancer Institute (NCI) PSA Working Group Criteria. To evaluate the safety of this drug combination, patients will be evaluated at each clinic visit for adverse events. Toxicities will be assessed per National Cancer Institute (NCI) CTCAE Version 3.0.